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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
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    <title>Document</title>
</head>
<body>
<div id="app">
    <!--条件判断语法-->
<!--    <h1 v-if="ok">YES</h1>-->
<!--    <h1 v-else>NO</h1>-->
    <h1 v-if="type=='A'">A</h1>
    <h1 v-else-if="type=='B'">B</h1>
    <h1 v-else>其他</h1>
</div>

<script src="https://cdn.jsdelivr.net/npm/vue"></script>
<script type="text/javascript">
    var vm = new Vue({
        el: "#app",
        data: {
            ok: true,
            type: "A"
        }
    });
</script>
</body>
</html>